Preparation Of Anticoagulant Ice Agent From Waste Polystyrene

The anticoagulant ice agent is an admixture capable of actively melting the snow on the road surface,and is added to the asphalt mixture.Under the action of capillary pressure or wheel load abrasion,the active ingredient in the anti-condensation agent is from the asphalt mixture.The space with a higher internal salt concentration diffuses to the surface layer of the road with a lower concentration,lowers the freezing point of the ice,and delays the snow accumulation on the road.Compared with traditional snow melting agents,anti-condensation agents with slow release effect can reduce the maintenance cost of winter pavement and reduce the damage to the environment.Using pesticides and fertilizer coating technology,using waste polystyrene as the main material,using three kinds of mixed solvents,and adding additives such as modifiers,plasticizers and reinforcing agents to prepare anti-condensation agents with sustained release effect,expand The application range of waste polystyrene solves the problem of white pollution and has social and economic benefits.A mixed solution of ethyl acetate,dichloromethane,and toluene was used in a volume ratio of 3:2:1 to prepare a coating solution having a concentration of 0.5 g/ml at a temperature of 35?.Adding modifier rosin to improve film forming ability,dibutyl phthalate is a plasticizer to reduce the brittleness of polystyrene,and styrene-butadiene-styrene(SBS)resin is used as a reinforcing agent to increase polystyrene.Adhesion of the film.Orthogonal test confirmed that the modifier rosin content was 12%,the plasticizer dibutyl phthalate dosage was 9%,and the reinforcing agent SBS resin content was 2%,the particle size was 4.75?9.5mm.The large-grain salt is coated in two layers,and only a small amount of attapulgite carrier is coated on the outer layer of the first layer,and the anti-condensation agent is prepared under natural conditions.The results of conductivity meter and scanning electron microscopy showed that the surface of the salt particles was covered by the film,which had good sustained release performance and good coverage.The prepared anti-condensation agent was applied to asphalt concrete,and its road performance and short-term melting snow effect were evaluated.The experiment determined the mix ratio of the asphalt mixture and the optimum ratio of oil to stone was 4.9%.The anti-condensation agent is incorporated in an admixture form,and the road performance of the anti-condensation agent meets the requirements of the asphalt mixture specification in the current specification.As the amount of anti-icing agent increases,the low-temperature crack resistance is weakened to a certain extent.When the anti-icing agent is added 6%,the water stability is good,which can effectively resist water damage.In order to avoid the effective rate of analysis of the anti-condensation agent,and to ensure the timeliness of the snowmelt performance of the road surface,the salty snow melting asphalt pavement needs to strictly control the compaction degree.When the void ratio is 4%,the timeliness of the road snow melting performance and the vehicle can be guaranteed.Driving safety.